Population 24,337 · Census ACS 2020–24
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Population and households in ZIP 21601
Household size in ZIP 21601
| Period | ZIP 21601 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 2.42 | 2.68 | 2.68 |
| 2010–14 | 2.35 | 2.73 | 2.73 |
| 2015–19 | 2.20 | 2.74 | 2.71 |
| 2020–24 | 2.35 | 2.68 | 2.65 |
| Change | −0.07 | +0.01 | −0.03 |
ZIP 21601 is a place of small households, averaging 2.35 people against 2.65 for the U.S., which points to many singles, couples and roommates and relatively few children. Since 2006–10, household size has edged down from 2.42, as it has nationally. Households are largest in the north and smallest in the southwest.
Household size: the average number of people living in each occupied home. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25010).
Median age in ZIP 21601
| Period | ZIP 21601 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 45.2 | 38.5 | 37.7 |
| 2010–14 | 47.3 | 39.3 | 38.6 |
| 2015–19 | 46.3 | 40.2 | 39.6 |
| 2020–24 | 48.2 | 40.6 | 40.1 |
| Change | +3.0 | +2.1 | +2.3 |
With a median age of 48.2, ZIP 21601 is noticeably older than the country as a whole (40.1), an age mix that tilts toward empty nesters and retirees. The median age has climbed from 45.2 in 2006–10, in line with the national trend. Of the 240 Maryland ZIP codes with 5,000+ people, only nine are older.
Median age: the age that splits residents into two equal halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B01002).
Single-parent households in ZIP 21601
| Period | ZIP 21601 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 9.8% | 12.5% | 12.3% |
| 2010–14 | 11.1% | 12.6% | 12.3% |
| 2015–19 | 11.0% | 11.7% | 11.6% |
| 2020–24 | 11.5% | 11.7% | 11.6% |
| Change | +1.6 pts | −0.9 pts | −0.6 pts |
Single-parent households are about as common in ZIP 21601 as they are nationally: 11.5%, against 11.6%. The single-parent share has risen 1.6 points since 2006–10, even as the national share fell.
Single-parent households: households where one adult with no spouse present lives with children under 18. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B11003).
Housing in ZIP 21601
Renters in ZIP 21601
| Period | ZIP 21601 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 27.2% | 31.0% | 33.3% |
| 2010–14 | 34.7% | 32.9% | 35.6% |
| 2015–19 | 35.4% | 33.1% | 36.0% |
| 2020–24 | 29.8% | 32.4% | 34.8% |
| Change | +2.7 pts | +1.4 pts | +1.5 pts |
Most households in ZIP 21601 own their homes; 29.8% rent, a little below the national share of 34.8%. Among homeowners, 36.0% have no mortgage at all, below the national share of 39.8%. Since 2006–10, the renter share has risen 2.7 points, as it has nationally.
Renters: occupied homes that are rented rather than owned. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25003).
Vacant homes in ZIP 21601
| Period | ZIP 21601 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 13.5% | 9.0% | 11.4% |
| 2010–14 | 12.6% | 8.9% | 11.4% |
| 2015–19 | 10.1% | 8.9% | 11.1% |
| 2020–24 | 10.2% | 7.1% | 9.6% |
| Change | −3.3 pts | −1.9 pts | −1.8 pts |
Vacancy in ZIP 21601 is close to the national rate: 10.2% of homes are empty, against 9.6%. The rate is higher than in Maryland as a whole (7.1%). Since 2006–10, vacancy has fallen 3.3 points, in line with the national trend.
Vacant homes: homes with no one living in them, including vacation homes and homes for sale or rent. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25002).
Age of homes in ZIP 21601
| Period | ZIP 21601 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 1981 | 1974 | 1974 |
| 2010–14 | 1983 | 1975 | 1975 |
| 2015–19 | 1981 | 1976 | 1977 |
| 2020–24 | 1983 | 1978 | 1980 |
| Change | +2 | +4 | +6 |
The typical home in ZIP 21601 was built around 1983, about the same vintage as the country's housing overall (1980). Homes here are newer than in Maryland overall, where the median home dates to 1978. Newer construction is concentrated in the southeast, while the center has the oldest housing.
Age of homes: the year that splits the housing stock into older and newer halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25035).
Rent in ZIP 21601
| Period | ZIP 21601 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | $1,060 | $1,249 | $965 |
| 2010–14 | $1,185 | $1,363 | $1,040 |
| 2015–19 | $1,262 | $1,576 | $1,213 |
| 2020–24 | $1,420 | $1,869 | $1,571 |
| Change | +$361 | +$620 | +$606 |
A typical rental in ZIP 21601 costs $1,420 a month with utilities, below the national median of $1,571. Rents are up $361 a month from 2006–10, a 34% rise, a slower climb than the nation's. Rent takes 29.2% of the typical renter's income, just under the 30% mark often used to define affordable rent.
Rent: monthly rent plus the utilities renters pay themselves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25064).
Education in ZIP 21601
Bachelor's degrees in ZIP 21601
| Period | ZIP 21601 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 31.8% | 36.3% | 28.4% |
| 2010–14 | 33.3% | 37.7% | 29.6% |
| 2015–19 | 39.1% | 40.5% | 32.1% |
| 2020–24 | 38.1% | 43.4% | 35.6% |
| Change | +6.3 pts | +7.1 pts | +7.2 pts |
College degrees are about as common in ZIP 21601 as nationally: 38.1% of adults 25 and older have a bachelor's or higher, against 35.6%. The share is lower than in Maryland overall (43.4%). The share with a degree is up 6.3 points from 2006–10, mirroring the country.
Bachelor's degrees: adults 25 and older with a bachelor's degree or higher. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
High school graduates in ZIP 21601
| Period | ZIP 21601 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 88.0% | 88.0% | 84.9% |
| 2010–14 | 88.3% | 89.1% | 86.1% |
| 2015–19 | 89.8% | 90.2% | 87.7% |
| 2020–24 | 91.3% | 90.9% | 89.3% |
| Change | +3.2 pts | +2.9 pts | +4.3 pts |
High school completion in ZIP 21601 is a bit above the national rate: 91.3% of adults have a diploma or equivalent, against 89.3%. That is in line with the rest of Maryland. The share with a diploma is up 3.2 points from 2006–10, as it has nationally.
High school graduates: adults 25 and older with a high school diploma, GED or more. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
Jobs in ZIP 21601
| Period | ZIP 21601 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 6.0% | 6.5% | 8.1% |
| 2010–14 | 6.3% | 8.1% | 9.4% |
| 2015–19 | 3.4% | 5.1% | 5.6% |
| 2020–24 | 3.5% | 5.0% | 5.4% |
| Change | −2.5 pts | −1.5 pts | −2.7 pts |
Jobs have been easier to find in ZIP 21601 than nationally: unemployment was 3.5%, against 5.4%. Unemployment has fallen 2.5 points since 2006–10, in line with the national trend. Each figure pools five years of surveys (2020–24), so it describes that whole stretch rather than today's job market.
Unemployment: people looking for work as a share of everyone working or looking. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B23025).
ZIP 21601 compared with nearby ZIP codes
| ZIP code | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| ZIP 21601 | 2.35 | 48.2 | 11.5% | 29.8% | 10.2% | 1983 | $1,420 | 38.1% | 91.3% | 3.5% |
| ZIP 21653 | 2.15 | 54.8 | 4.0% | 9.1% | 28.2% | 1984 | $2,042 | 63.2% | 98.0% | 6.7% |
| ZIP 21654 | 1.89 | 65.2 | 8.3% | 13.7% | 30.8% | 1975 | $1,915 | 61.8% | 95.5% | 10.5% |
| ZIP 21673 | 2.28 | 47.4 | 13.7% | 24.8% | 20.9% | 1982 | $1,364 | 35.6% | 94.8% | 5.3% |
| ZIP 21625 | 2.83 | 45.5 | 5.3% | 15.5% | 12.4% | 1984 | $1,600 | 34.6% | 94.5% | 4.3% |
| ZIP 21662 | 2.15 | 54.8 | 4.0% | 9.1% | 28.2% | 1984 | $2,042 | 63.2% | 98.0% | 6.7% |
| ZIP 21663 | 2.17 | 56.1 | 4.3% | 22.4% | 24.5% | 1980 | $1,107 | 52.7% | 89.7% | 5.4% |
| ZIP 21655 | 2.65 | 42.5 | 11.6% | 18.4% | 7.9% | 1976 | $1,363 | 21.2% | 90.5% | 3.6% |
| ZIP 21612 | 2.18 | 68.4 | 2.4% | 0.0% | 42.0% | 1972 | $1,056 | 48.3% | 98.8% | 0.0% |
| ZIP 21647 | 1.96 | 60.2 | 9.8% | 3.2% | 28.7% | 1981 | $1,193 | 46.9% | 92.4% | 1.3% |
| ZIP 21624 | 1.96 | 60.2 | 9.8% | 3.2% | 28.7% | 1981 | $1,193 | 46.9% | 92.4% | 1.3% |
All figures 2020–24.
Zip codes with similar populations: 08037, NJ · 17036, PA · 48390, MI · 94085, CA · 36582, AL · 37415, TN · 85268, AZ · 43140, OH · 43212, OH · 46041, IN
About these numbers
Every figure on this page is a BestNeighborhood calculation from the Census Bureau's American Community Survey (ACS), built up from the Census block groups that make up ZIP 21601. Each ACS 5-year release pools five years of responses; this page shows the last 15 releases, 2006–10 through 2020–24. Neighboring releases share four of their five years, so they move gradually and small changes between them are within the survey's margin of error; in small places the lines can jump from one release to the next for the same reason. The maps show the same measures for each neighborhood, ranked against the whole country.
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